Balance confirmation jig

Abstract

To provide a technique capable of measuring the supply distribution of a powder material within a short time without needing a complex process.SOLUTION: This balance confirmation jig for a discharge amount of a powder material in laser cladding comprises: a lid having a plurality of openings substantially formed into rectangular shapes to allow passage of the powder material and detachably attached to a laser head that discharges the power material in the laser cladding; a powder reception part provided below the lid to receive the powder material passed through the openings; and a partition that is a plate-like member stored in the powder reception part and disposed so as to be positioned between the openings adjacent to each other among the openings, and that partitions the powder reception part into a plurality of regions arranged in the longitudinal and parallel directions of the openings.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a balance confirmation jig.

Background Art

[0002] As a means of increasing the design freedom of ports of a cylinder head for an automobile engine, a laser cladding technique is known in which a valve seat is formed by directly building up a wear-resistant powder with a laser. Patent Document 1 describes a technique for controlling the amount of powder material introduced into a nozzle so that the amount of powder material discharged from the nozzle of a laser cladding processing apparatus becomes uniform. Thereby, it is possible to suppress the excessive supply of the powder material from the nozzle and the resulting unwelded state, as well as the shortage of the supply of the powder material and the resulting solidification cracking, and to suppress the occurrence of quality defects.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Measurement of the supply distribution of the powder material discharged from the nozzle requires complicated processing, and there is a problem that adjustment of the nozzle takes a long time.

Means for Solving the Problems

[0005] The present disclosure has been made to solve the above-described problems and can be realized in the following forms.

[0006] According to an aspect of the present disclosure, there is provided a balance confirmation jig for the discharge amount of powder material in laser cladding. This balance confirmation jig is detachable from a laser head that discharges powder material in laser cladding, and includes a lid portion having a plurality of substantially rectangular openings through which the powder material passes, a powder receiving portion provided below the lid portion for accommodating the powder material that has passed through the openings, and a plate-like member that is accommodated in the powder receiving portion and is arranged so as to be located between adjacent openings among the plurality of openings, and a partition portion that partitions the powder receiving portion into a plurality of regions arranged in a direction parallel to the longitudinal direction of the openings. According to the balance confirmation jig of this aspect, the powder material that has entered from the openings is accommodated in the powder receiving portion partitioned by the partition portion. By measuring the amount of each powder material partitioned and accommodated by the partition portion, the supply distribution of the powder material can be measured. Therefore, the supply distribution of the powder material can be measured in a short time without requiring complicated processing.

[0007] Note that the present disclosure can be realized in various forms, for example, it can be realized in forms such as a laser cladding apparatus and a method for measuring the supply distribution of powder material of a laser cladding apparatus.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0009] A. First Embodiment: FIG. 1 is an explanatory diagram showing the configuration of a laser cladding processing apparatus 100 according to the present embodiment. The laser cladding processing apparatus 100 is an apparatus that performs laser cladding processing on an object. In the present embodiment, the laser cladding processing apparatus 100 performs laser cladding processing on a cylinder head 200 that is a processing target, and forms beads on a valve seat portion 220. The laser cladding processing apparatus 100 includes a laser head 10 and a control unit 20.

[0010] The laser head 10 includes a laser irradiation unit (not shown), a powder supply unit, and an actuator. The laser head 10 forms a clad layer on an object by irradiating the cylinder head 200 with laser light from the laser irradiation unit and melting the powder material while discharging the metallic powder material from the powder supply unit to the cylinder head 200. The laser head 10 forms a clad layer while moving the laser irradiation unit and the powder supply unit by the actuator. In the present embodiment, the laser head 10 forms a clad layer while moving along a substantially circular clad groove formed in the valve seat portion 220 of the cylinder head 200.

[0011] The control unit 20 is composed of a computer including a central processing unit (CPU), a RAM, and a ROM, and controls the operation of the laser head 10 by the CPU executing a program pre-installed in a storage area such as the RAM and ROM of the control unit 20. However, part or all of the functions of these respective units may be realized by a hardware circuit. The control unit 20 controls the laser head 10 according to the set output intensity of the laser and the supply amount of the powder material.

[0012] The cylinder head 200 has a combustion chamber surface 210 that is concave. The combustion chamber surface 210 forms a fuel chamber with a piston (not shown). The combustion chamber surface 210 has a plurality of valve seat portions 220 that serve as valve seats for the intake valve and the exhaust valve. The valve seat portions 220 play a role in sealing between the intake valve, the exhaust valve, and the combustion chamber surface 210 in the combustion chamber. In FIG. 1, a part of the cylinder head 200 is depicted in a state of being cut along the thickness direction of the cylinder head 200, and the overall shape of the cylinder head 200 and the shapes of the combustion chamber surface 210 and the valve seat portions 220 are depicted in a simplified manner.

[0013] FIG. 2 is a schematic cross-sectional view showing the configuration of the balance confirmation jig 300, and FIG. 3 is a perspective view of the balance confirmation jig 300. The balance confirmation jig 300 is a jig for measuring the distribution of the discharge amount of the powder material of the laser cladding processing apparatus 100. The balance confirmation jig 300 is a jig that can be attached to and detached from the laser head 10. The balance confirmation jig 300 includes a lid portion 310, a powder receiving portion 320, and a plurality of partition portions 330.

[0014] The lid portion 310 has a plurality of openings 311. The openings 311 are substantially rectangular in shape. In the present embodiment, the plurality of openings 311 have the same shape as each other. The plurality of openings 311 are provided in parallel in the short side direction of the openings 311 in the lid portion 310.

[0015] The powder receiving portion 320 is a container provided below the lid portion 310. The powder receiving portion 320 accommodates the powder material discharged from the laser head 10 and passing through the openings 311.

[0016] The partition portion 330 is a plate-like member that is accommodated in the powder receiving portion 320 and is arranged so as to be positioned between adjacent openings 311. The partition portion 330 partitions the powder receiving portion 320 into a plurality of regions arranged in a direction parallel to the longitudinal direction of the openings 311. In the present embodiment, the partition portion 330 extends from the lid portion 310 toward the bottom surface of the powder receiving portion 320 and partitions the powder receiving portion 320 into a plurality of regions.

[0017] In this embodiment, two partition parts 330 are provided to partition the powder receiving part 320 into three regions of accommodating parts 321A, 321B, and 321C. The partition part 330 is provided to divide the powder receiving part 320 according to the region of the supply distribution of the powder material to be measured. Further, the partition part 330 is integrally formed with the powder receiving part 320.

[0018] According to the balance confirmation jig 300 of this embodiment described above, the powder material that has entered from the opening 311 is accommodated in the powder receiving part 320 partitioned by the partition part 330. By measuring the amount of the powder material accommodated in each of the accommodating parts 321A, 321B, and 321C formed by being partitioned by the partition part 330, the supply distribution of the powder material can be measured. Therefore, the supply distribution of the powder material can be measured in a short time without requiring complicated processing.

[0019] B. Other Embodiments: (B1) In the above-described embodiment, the balance confirmation jig 300 includes two partition parts 330. However, the balance confirmation jig 300 may include any number of partition parts 330. Further, the balance confirmation jig 300 may include only one partition part 330.

[0020] (B2) In the above-described embodiment, the partition part 330 extends vertically from the lid part 310 to the bottom surface of the powder receiving part 320. However, the partition part 330 may extend so as to spread from the lid part 310 to the bottom surface of the powder receiving part 320, or may extend so as to spread from the bottom surface of the powder receiving part 320 to the lid part 310.

[0021] The present disclosure is not limited to the above-described embodiments, and can be realized in various configurations without departing from the gist thereof. For example, the technical features in the embodiments corresponding to the technical features in each form described in the summary of the invention can be appropriately replaced or combined in order to solve the above-described problems or to achieve some or all of the above-described effects. Further, if the technical feature is not described as essential in this specification, it can be appropriately deleted.

Explanation of Reference Numerals

[0022] 10… Laser head, 20… Control unit, 100… Laser clad processing apparatus, 200… Cylinder head, 210… Combustion chamber surface, 220… Valve seat portion, 300… Balance confirmation jig, 310… Cover portion, 311… Opening portion, 320… Powder receiving portion, 321A, 321B, 321C… Accommodating portions, 330… Partition portion

Claims

【Claim 1】 A balance checking jig for the discharge amount of powder material in laser cladding processing, which is detachable from a laser head that discharges the powder material in the laser cladding processing, a lid portion having a plurality of substantially rectangular openings through which the powder material passes, a powder receiving portion provided below the lid portion for receiving the powder material that has passed through the plurality of openings, and a plate-like member that is accommodated in the powder receiving portion and is arranged so as to be positioned between adjacent openings among the plurality of openings, and a partition portion that partitions the powder receiving portion into a plurality of regions arranged in a direction parallel to the longitudinal direction of the openings. A balance checking jig comprising:

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